From: Nadeem Ansari (nadeem.ansari574@gmail.com)
Date: Wed Feb 25 2009 - 12:35:37 ARST
Hi Pavel,
There are no terms called "Push" and "Pull" documented any where in RFC for
PIM-SM :),It feels good for a person own understanding or to make terms
simple
Actually better if we called it as Explicit Join (Pull) and Implicit Join
(Push), thats the basic buddy. :)
Regards
Nadeem
On Wed, Feb 25, 2009 at 7:46 PM, Pavel Bykov <slidersv@gmail.com> wrote:
> "Push" and "Pull" are correct terms.
> "sparse-dense-mode" is not a PIM method, but an interface operating mode.
> It's something different. A loose analogy would be enabling RIP and OSPF on
> the same interface - if there is no OSPF route, a RIP route would be used.
>
> Same for multicast. There is a "Sparse mode PIM" that uses pull model,
> sometimes needs RP, but not always (extensions like SSM or concepts like
> Phantom RP remove this need). It does not forcefully flood data - that's
> what makes it PULL.
>
> Then there is "PIM dense mode" that pushes data - but again, it's a
> multicast routing protocol, it is not an interface mode you are referring
> to.
>
>
> And Nadeem... I really hope you're kidding, otherwise you need to get back
> to basics.
>
>
> On Wed, Feb 25, 2009 at 2:14 PM, Modular <modulartx@gmail.com> wrote:
>
> > Anthony Sequeira had a list of example "open ended questions".... of of
> > which was:
> >
> > "which multicast PIM method uses a push and pull approach"???
> >
> > What's the correct answer???
> >
> > "sparse-dense-mode" -Which technically can do both. (Based on whether
> > the RP is known or not.
> >
> > "sparse-mode" -the source pushes to the RP, while the client pulls from
> > the
> > RP.
> >
> >
> > Thanks,
> > Mod...
> >
> >
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>
> --
> Pavel Bykov
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